CN101105371A - Cooling column water temperature regulate and control method - Google Patents
Cooling column water temperature regulate and control method Download PDFInfo
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- CN101105371A CN101105371A CNA2007100119345A CN200710011934A CN101105371A CN 101105371 A CN101105371 A CN 101105371A CN A2007100119345 A CNA2007100119345 A CN A2007100119345A CN 200710011934 A CN200710011934 A CN 200710011934A CN 101105371 A CN101105371 A CN 101105371A
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Abstract
The invention discloses a method for regulating and controlling temperature of water in a cooling tower in a power plant. A circle of water pipes and a plurality of water-cooling blows are arranged outside an air inlet port of a cooling tower, a plurality of branch water pipes are equipped in the water-cooling blower, and cold water is introduced into the branch water pipes of the blower from the circle of water pipes. An induced fan and a blast blower are disposed in the water-cooling blower, and the surrounding air is introduced by the induced fan in the blower, subjected to heat exchange with the cold water in the branch water pipes, and then blew to the lower part of the cooling tower by the blast blower. The inventive method converts surrounding air to strong cold air that can be used as cold air source for cooling the cooling water temperature. Meanwhile, the invention improves the sprinkling device, so as to further cool the cooling water. The invention has the advantages of environmentally friendless, no pollution, low cost, good energy-saving effect, long service life, and high social benefit.
Description
One, technical field
The invention belongs to cooling tower temperature adjusting technology, be specifically related to the water temperature regulate and control method of power plant double-curve cooling column.
Two, background technology
Can power generating plant cooling tower work summer in good condition, it is the necessary condition of generating at full capacity and safe power generation, have only cooling tower to have enough cooling effects, the water of enough coolings is provided to the condenser of Turbo-generator Set, could guarantee condenser vacuum necessary degree, thereby guarantee the normal operation of Turbo-generator Set.The merit that the lower equivalent steam of the temperature of cooling water is done is bigger, its effective rate of utilization is also just high, can cooling tower reach due efficient is the essential condition that coal power saving, energy savings, reduction cost of electricity-generating be economized in the power plant can, also is a key issue that influences the business economic benefit.The cooling water temperature of generation current factory cooling tower all is that when summer temperature was high, its efficient was very low by the natural wind cooling.
The water distribution system of power generating plant cooling tower is: the inlet water of cooling tower is through the pressure pipeline vertical shaft of flowing through, branch to each distribution channel, it is unrestrained to packing to form the tiny and uniform globule through spraying and splashing facility again, the main position of heat exchange is a packing in the liquid distribution, the globule that it falls splash is stopped, and forms very big moisture film and the raindrop of surface area, fully contacts with surrounding air, finish heat exchange in modes such as evaporation conduction and convection current, make recirculated water obtain cooling.The top of vertical shaft and distribution channel all opens wide in the present technology, is to rely on whereabouts, the splash process of the globule to cool off naturally, and temperature, wind speed, humidity, atmospheric pressure etc. all have a significant impact the water cooling effect.In summer, the actual temperature of cooling water is far above design temperature, requires to differ greatly with the cooling water temperature of economy.Using more general splash heat sink at present is " water spout---water spreading disc device ", the hydrostatic head that it utilizes certain depth of water to form, make water form jet downwards, the directive water spreading disc, become the uniform globule unrestrained to packing the jet splatter, can reduce 5～15% of recirculated water cooling amplitude.Its deficiency is that the globule unit volume that goes out of splatter is big, and cooling effectiveness is low.
Three, summary of the invention
The purpose of this invention is to provide a kind of cooling column water temperature regulate and control method, use strong cold wind to replace existing natural wind,, reach energy saving purposes to improve the operating efficiency of cooling tower.The technical solution used in the present invention is: in the cooling tower air inlet outside one all water lines and a plurality of water-cooled blower fan are installed, one all water lines are communicated with each water-cooled blower fan, a plurality of minutes branching pipes are set in the water-cooled blower fan, and cold water is entered in the branch branching pipe of blower fan by all water lines.Air-introduced machine and air blast are arranged in the water-cooled blower fan, outside air is introduced, in blower fan, carry out being blown into the cooling tower bottom by air blast again after the heat exchange, make the cooling tower bottom obtain strong cold air with dividing the cold water in the branching pipe by air-introduced machine.
When summer temperature is higher, open the water-cooled blower fan, cold water enters blower fan each minute branching pipe respectively through all water lines, and the outlet of branching pipe enters in the tower from the nozzle ejection by each minute, as the additional water source of cooling tower water evaporation loss.Branch branching pipe in the air duct constantly gives out a large amount of cold air, is entered in the water-cooled blower fan by the extraneous air of air-introduced machine introduction and produces eddy current, sweeps across cold air, and powerful cold wind is cooling water temperature in air blast is transported to tower.
The inventive method environmental protection, pollution-free, cost is low, good energy-conserving effect, life cycle is long, and social benefit is big.
Four, description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of water-cooled blower fan;
Fig. 4 is the left view of Fig. 3.
Five, the specific embodiment
In the cooling tower 1 air inlet outside, one all water lines 2 are set and a plurality of water-cooled blower fan 3, one all water lines 2 are communicated with each water-cooled blower fan 3, cold water source is from the additional water source of cooling tower, enter each minute branching pipe of blower fan through all water lines, water flows to and is terminally entered in the tower by the nozzle ejection.Chinese patent application " fast spraying freezing coldproof method " (200510085723.7) has been introduced the method for a kind of cooling tower winter protection in winter, this method and the inventive method are combined in winter, summer temperature of adjustable cooling water all, thereby can make cooling tower be able to higher efficient operation, energy savings prolongs service life of equipment.In cooling tower 1 periphery one all water lines 2 are set in " fast spraying freezing coldproof method " (200510085723.7), carry out enclosing with wire netting 4, and be provided with branch's water lines 5 and (operating) water nozzle 6 at the cooling tower air inlet.All water lines 2 here can be shared with the present invention, to reduce investment, reduces cost.
The improvement of water distribution spraying and splashing facility is all to seal with vertical shaft 7 with above the distribution channel to form enclosed circulation pipeline 8, below circulation pipeline 8 a plurality of adjustable spray nozzles 9 is installed, and the spout of spray nozzle 9 is towards horizontal direction.The water source of vertical shaft 7 water distribution pipeline of flowing through respectively, rely on the flow and the pressure at vertical shaft water source, offer adjustable spray nozzle 9 ejections, the direction of sending forth is that side direction laterally sprays, unrestrained to packing 10, in constant space, can prolong the distance of spraying water droplet like this, for the time has been won in the cooling of water.The globule of adjustable spray nozzle 9 ejections is changeable, can be adjusted to the big raindrop of moderate rain from the tiny vaporific globule, adapts to the needs of Various Seasonal, and for reducing evaporation loss, the globule size of ejection should be an appropriateness with the evaporation capacity loss of minimum, maximum cooling effectiveness.The spraying and splashing facility that adopts in adjustable spray nozzle 9 and existing the production is compared under identical natural conditions, and cooling effectiveness significantly improves, and reaches cooling purpose rapidly and efficiently.For prevent that cooling tower from stopping using winter temporarily, on circulation pipeline 8, be provided with inlet valve 11, be convenient in the pipeline ponding and discharge.
Water-cooled blower fan 3 has the blower fan cylindrical shell 12 that a horizontal end is big, an end is little, big end toward the outer side, small end is towards cooling tower 1, there is ring-type water tank 13 at the air intake vent place in cylindrical shell 12 outer end, many are communicated with ring-type water tank 13 with vertical branch branching pipe 14 two ends of blower fan central axis, in ring-type water tank inboard air-introduced machine 15 is arranged, extraneous wind is incorporated in the blower fan cylindrical shell from vertical branch branching pipe 14 gaps; Also be provided with along the blower fan barrel is inboard how row's sidewalls divide branching pipe 16 week, sidewall divides the outer end of branching pipe 16 and ring-type water tank 13 to connect, and nozzle is equipped with towards cooling tower in the inner; Air blast 17 is positioned at the inner air outlet of blower fan cylindrical shell place.During work, cold water is through entering the ring-type water tank 13 of water-cooled blower fan with all water lines 2 water pipe connecting 18, flows into each minute branching pipe 14,16 respectively, the cold air that bulk storage is a large amount of.Introduce extraneous air by air-introduced machine 15, enter in the water-cooled blower fan, produce eddy current and sweep across cold air, cold wind is sent to the end of water-cooled blower fan, is discharged by air blast 17 to enter in the cooling tower, and cold water is circulating water, flows to the inner by the outer end of water-cooled blower fan, is sprayed by nozzle.What, the flow of water of nozzle are decided on the total amount of cooling tower water evaporation loss.
Claims (4)
1. cooling column water temperature regulate and control method, comprise cooling wind regime and spraying and splashing facility, it is characterized in that: one all water lines (2) and a plurality of water-cooled blower fan (3) are installed in cooling tower (1) the air inlet outside, one all water lines (2) are communicated with water-cooled blower fan (3), the water-cooled blower fan is provided with a plurality of minutes branching pipes in (3), and cold water is entered in the branch branching pipe of blower fan by all water lines (2); In water-cooled blower fan (3), air-introduced machine and air blast are arranged, outside air is introduced, in blower fan, carry out being blown into the cooling tower bottom by air blast again after the heat exchange with dividing the cold water in the branching pipe by air-introduced machine.
2. cooling column water temperature regulate and control method according to claim 1, it is characterized in that: said spraying and splashing facility is that vertical shaft (7) upper end and distribution channel are all sealed, form enclosed circulation pipeline (8), a plurality of spray nozzles (9) are installed below circulation pipeline (8), and the spout of spray nozzle (9) is towards horizontal direction.
3. cooling column water temperature regulate and control method according to claim 2 is characterized in that: on distribution channel envelope (8) is closed the circulation pipeline of formation air inlet pipe (11) is installed.
4. cooling column water temperature regulate and control method according to claim 1, it is characterized in that: said water-cooled blower fan (3) has the blower fan cylindrical shell (12) that a horizontal end is big, an end is little, big end toward the outer side, small end is towards cooling tower, there is ring-type water tank (13) at the air intake vent place in cylindrical shell (12) outer end, many are communicated with ring-type water tank (13) with vertical branch branching pipe (14) two ends of blower fan central axis, in ring-type water tank (13) inboard air-introduced machine (15) are arranged; Also be provided with along the blower fan barrel is inboard how row's sidewalls divide branching pipe (16) week, sidewall divides the outer end of branching pipe (16) to be communicated with ring-type water tank (13), and nozzle is equipped with towards cooling tower in the inner; Air blast (17) is positioned at the inner air outlet of blower fan cylindrical shell place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100119345A CN100462659C (en) | 2007-06-28 | 2007-06-28 | Cooling column water temperature regulate and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100119345A CN100462659C (en) | 2007-06-28 | 2007-06-28 | Cooling column water temperature regulate and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105371A true CN101105371A (en) | 2008-01-16 |
| CN100462659C CN100462659C (en) | 2009-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100119345A Expired - Fee Related CN100462659C (en) | 2007-06-28 | 2007-06-28 | Cooling column water temperature regulate and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466416A (en) * | 2011-12-19 | 2012-05-23 | 张富华 | Temperature regulation method for cooling tower |
| CN110057003A (en) * | 2019-05-13 | 2019-07-26 | 南京工业大学 | A kind of Novel cooling tower system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762177B (en) * | 2009-12-29 | 2011-09-07 | 浙江大学 | Natural-draught brine cooling tower |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014768A1 (en) * | 2000-08-11 | 2002-02-21 | Kyung In Machinery Co., Ltd. | Hybrid type cooling tower |
| WO2002021062A1 (en) * | 2000-09-04 | 2002-03-14 | Kpe Llc | Cooling towers |
| CN2573980Y (en) * | 2002-10-18 | 2003-09-17 | 梁婉青 | Transversely blowing cooling tower |
| CN2681066Y (en) * | 2003-10-01 | 2005-02-23 | 葛叶凡 | Cold blast cooling tower |
| CN1862205A (en) * | 2005-05-14 | 2006-11-15 | 康梅 | High-efficient low-temp cooling tower |
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2007
- 2007-06-28 CN CNB2007100119345A patent/CN100462659C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466416A (en) * | 2011-12-19 | 2012-05-23 | 张富华 | Temperature regulation method for cooling tower |
| CN102466416B (en) * | 2011-12-19 | 2013-09-04 | 张富华 | Temperature regulation method for cooling tower |
| CN110057003A (en) * | 2019-05-13 | 2019-07-26 | 南京工业大学 | A kind of Novel cooling tower system |
| CN110057003B (en) * | 2019-05-13 | 2024-04-26 | 南京工业大学 | Novel cooling tower system |
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| Publication number | Publication date |
|---|---|
| CN100462659C (en) | 2009-02-18 |
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Granted publication date: 20090218 Termination date: 20120628 |